Lantern



2 Sheets-Sheet 4l.

R.; HAMMILL.

VLantern.

No.223,9o8. Patented Jan.`27, 1880.

N.PETE|3S. PHOT0-L1THOGRAPHR, WASHINGTON. D. C,

2 Sheets-Sheet 2;

R. I-LklVIlVIILL.4 Lantern.

No. 223,908, 'Patented Jan. 27,1880..

2; www@ N. PETERS. PHOTO-UTHOGRAPHER. WASHINGYON. D C,

Vzo

UNITED l STATES ATENT trice.

RICHARD HAMMILL, OF CHICAGO, ILLINOIS.

LANTERN.

SPECIFICATION forming part of Letters Patent No.v 223,908, dated January 27, 1889.

Application filed J une 16, 1879.

To all whom it may concern Be it known that I, RICHARD HAMMTLL, of Chicago, in the county of Cook and State of Illinois, have invented' certain new and useful Improvements in Watchniens Lanterns, which improvements are fully described' in the following specification, reference being had to the accompanying drawings.

The object 4of my invention is to produce a lantern that will consume all the combustible gases and vapors, and the burner of which wilLbe guarded against exposure to explosive gases" by careless handling, so that it will prove perfectly safe and reliable.

My invention consists, first, in the manner of supporting the match-lighting tube; second, in the peculiar lantern-burner; third, in the means for conducting the products of combustion back to the burner; and, fourth, in the peculiar guard, all as fully hereinafter ex plainetl.

In the drawings, Figure l represents an elevation of a lantern embodying my several irnproyements. Fig.2 represents avertical transverse section through the center of the same. Fig. 3 is a plan of the burner and oil-reservoir. Fig. 4 shows a longitudinal vertical section, and Fig. 5 a transverse vertical section, of the burner. Fig. 6 represents a sectional plan of the burner, showing the intermediate dia phragm therein, the wick-raising stem being omitted. Fig. 7 is a sectional plan, showing the lower diaphragm or bottom of the burner. Fig. 8 represents a plan of the hinged `guard detached; Fig. 9, a sectional View ofthe dome and gas-returning tubes on an enlarged scale; Fig. 10, a detached view of the guard-locking hooks; Fig. 1l, asection of that portion of the glass globe having the m atch-lighter attached;

and Fig. 12, a view of a portion of the lower plate to the guard and thc keyoperated lock for securing the salne.

Like letters in the several gures of the drawings indicate like parts.

A is the annular oil-reservoir, having an oililling Vent, a, which is closed with a screwplug and has an internally screw -threaded opening in its top for connecting therewith the burner B. ThisburncrB is closed on top and bottom by plates b and c, and the at wiektube d is secured with its ends between said plates centrally within said burner.

The cap-plate b has a narrow slit close to each side of the wick-tube d, and the bottom plate, c, l1as two semicircular ventsI adjacent to the wickftube; and about equal distance between said-top and bottom plates, b and c, the

wick-tuberi is surrounded bya circular plate or diaphragm, e, the periphery of which does not quite reach to the exterior shell of the burner and is curved downward. Any combustible gases collecting in the oil-reservoir will find an outlet through'the vents in the bottom plate, c, of the burner, thence through the annular opening around the diaphragm e, and thence through the narrow slits in top plate, b, which are in close proximity to the flame, and where the same will be consumed as fast as they rise, while, by the interrupted course providedfor by the diaphragm e, the oil cannot be spilled by accidentally upsetting or dropping of the lantern.A

D is an inverted funnel, secured above thel burner by three (more or less) tubes, E, which tubes are jointed with one end to the throat of said funnel, and with the other or lower end to the oil-reservoir A, so that any combustiblegases or vapor which may rise unconsumed from the burner by the vacuum and draft created f'rom the 'name will be conducted into the oil-reservoir, and thence will rise through the vents in the burner to find an exit through the narrow slits in the top ofthe burner, Where they are brought into close contact with the light to be ignited and consumed. rFhis circulation of heated gases through the oil-reservoir will prevent the freezing of the oil during severe cold weather and the extinguishing of the light from such a cause.

rIhe wick-adjusting wheels f, with theirY toothed rims, are projected through slotted openings in the wick-tube d in the usual manner, and are mounted upon a stem, g, pivoted into the shell of the burner, which stem g is coupled to thumb-wheel stem G by a hingejoint in such a manner that it can be folded when the -burner is to be disconnected from the oil-reservoir for cleaning the tubes E.

H is the bell-shaped dome, the under edges of which are jointed tothe edges of a concave plate, h, and the space between both these plates is lled with plaster-otparis or any other non-conducting material, whereby said dome is prevented from getting externally heated.

Into said plate 7L are secured two screw-studs, t', for connection of the perforated hood 1, which provides for the escape of the products of combustion, and b y a pending iiange holds the upper edge ot' the glass globe J. Under this hood I is secured a plate, K, by means of the samescrew-studs t, which has ascrew-threaded stud for entering the internally screw-threaded throat ot' the inverted funnel D, and for thereby forming a connection of the dome to the lantern.

L iisa perforated ri m-tlan ge, which is secured to the top ofthe oil-reservoir A for admitting atmospheric air to the burner and foi| receiving and holding the lower edge of the glassl globe J.l This glass globe J is slotted out in its bottoni edge for allowing the stem G of the wick-adjusting wheels to pass, and horizontally on a line with the top of the burner said glass globe has a round opening, through which a match-lighter, M, is projected, and in which the sameis secured by forming a shoulder internally against the glass globe and by having a circular nut, m, screwed upon the projecting screw-threaded end of the match- ]ighter, rubber packing` being interposed between the metal and the glass. has a concave face, which will facilitate the easy insertion of the friction-match.

Thematch-lighting tube M has aring sleeved on its inner portion within the globe, which sleeve carries a leaf-spring, M', having a serrated end projecting across the inclined open end of the tube, so ,that the match will be lighted by being pushed through such tube.

N is a guard composed of a series of curved wires, n, the ends of which are secured to top and bottom semicircular plates, 0 and p, each adjoining pair of which forms a ring, and is hinged together at one end, and one of the lower plates, p, at its opening end is provided with a bolt-lock, q, arranged to be locked with a removable key, which lock engages with and securely holds a hook-tongue, r, projecting from the end of the other section. Said rings o and p are provided with tlan ges, which overlap and relatively embrace the external iian ges of the hood I and rim L in a manner such that disconnection of the dome or of the glass globe is impossible without iirst unlocking and removing the guard N therefrom. The central or bulged portion of t-he wires n, forming the guard N, are braced together by two semicircularly-bent wires, s, jointed to said wires a, and forming a slip-hinge, with their ends at one side of the lantern, While their ends at the other side are provided with hooks s', which are interlocked for closing the said guard around the lantern-globe.

Pis a U-shaped wire handle, pi'voted to the dome of the lantern in the usual manner.

As will be noticed, alantern of the construction above described is complete in every respect, the same being easily ignited or extinguished without exposing the burner. It also provides for as perfect combustion ot' the illuminating fuel as can be obtained, and furnishes Said nut m a perfect safeguard against the dangers of negligent handling in the neighborhood of combustibles by its interior being under lock and inaccessible to the bea-rer of the lantern. lts dome is protected from the heat of the burner, and the circulation ofthe heated gases through the oil-reservoir keeps the illuminating fuel in a liquid condition during cold weather, all of which advantages are of great value to parties who employ night-watchmen, to tire departments, police, and railroad officers.

I am aware that I am not the iirst to use a match-lighting device to light the match as it is pushed toward the flame, and I know that it is old to provide a lantern-burner with openings leading from the oil-reservoir around the wick-tube to the flame, so that the vapor rising from the oil will be consumed by the flame.

I am also aware that it is old and common property to collect the products of combustion as they rise from the flame by a bell or inverted funnel and conduct them by tubes back tothe burner, and know that these tubes have been led through the oil-reservoir above the oil, but have never, to my knowledge, opened into such oil-reservoir, and I am further well aware that the broad idea of a hinged lanternguard is not original with me.

What I claim, and desire to secure by Letters Patent, is-

1. In a lantern, the combination, with the glass globe J of the match-lighting tube M, having a shoulder resting against the inside of the globe and a screw-threaded end projecting through such globe, the concave nut m, turned 'on the end of such tube, and the packing-rings between the shoulder and nut and the globe, substantially as described and shown.

2. The lantern-burner B, having a fiat wicktube, d, and wick-raising stem and wheels, and constructed with top and bottom plates, b c, eX- tending from the shell of the burner to the wick-tube, and perforated at the sides of such wick-tube, in combination with the concave diaphragm e within such burner, substantially as described and shown.

3. In a lantern, the combination of'an inverted funnel supported within the lanternglobe above the burner, circulating-tubes eX- tending from'such inverted funnel into the oil-reservoir and discharging the air and gases passing through such tubes directly into such reservoir above the oil, and openings leading from such oil-reservoir to the burner, substantially as described and shown.

et. In a lantern, the combination, with the oil-reservoir, burner, and inclosing-globe, of an inverted funnel supported within such globe above the burner, circulating-tubes extending from such inverted funnel within the globe down to the oil-reservoir, and openings from the oil-reservoir to the burner, substantially as described and shown.

5. In combination with 'the oil-reservoir A and the burner B, having a perforated top and IOO IIO

' bottom, b` and c, and af diaphragm, e, the inwithout first unlocking the guard, substantially as described and shown.

8. In e lautern, the oil-reservoir carrying plate L, the globe resting on such plate, and the top supported from the reservoir and having hood I, with outwardly-projecting flange, in combination with the hinged guard N, constructed With plates o p, having inwardly turned lianges which embrace the plete L and 'delige of hood I,constructed and arranged substantially asudescribed and shown. l

RICHARD HAMMILL.

Witnesses HEINR. LDERS, EMIL H. FROMMANN. 

